Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Dayton → Denver via Dulles: arrives on time 71%

  1. 19:43 DAY → 21:25 IAD
    UA 4267 · United, flown by CommuteAir · 1h 42m · 87% on time, 1.8% cancelled
  2. 58m layover in Dulles (IAD) · 45 min minimum on one ticket
  3. 22:23 IAD → 00:30 DEN +1 day
    UA 495 · United · 4h 07m · 84% on time, 0.3% cancelled

Total trip 6h 47m, scheduled departure to arrival (Denver is 2 h behind Dayton). Times are local. Both flew on 48 of the last 56 days.

Makes the connection86%The first flight arrived more than 13 minutes late on 14% of the days it flew: too late for the 45-minute minimum connection on a 58m layover.
Arrives on time71%First flight not cancelled (1.8% are) × connection made (86%) × second flight not cancelled (0.3% are) and within 15 minutes (84%).
Total trip6h 47mDAY 19:43 to DEN 00:30, layover included

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.